Download favourites of artist/playlist only

I often run into the problem that I dont like every song of a a playlist, but want to download the ones I like.

Currently my only option is to make a playlist with all my favourites of the playlist which potentially takes a lot of time.

I can think of two solutions:

1. Having the option to download only favourites of a playlist.
2. Being able to sort songs by fouvirite/ not favourite AND adding a feature to easily select multiple songs, for example by pressing shift + click like in the Windows explorer.